Section 42a-2A-606 - Procedure on notice claiming excuse(a) A party that receives notice of a material or indefinite delay in performance or an allocation permitted under section 42a-2A-307 or 42a-2A-605 as to any delivery concerned, or of a breach of the whole lease contract under subsection (c) of section 42a-2A-726, by notice in a record may: (1) Terminate and thereby discharge any unexecuted portion of the lease contract; or(2) Except in a finance lease that is not a consumer lease, modify the lease contract by agreeing to take the available allocation in substitution under section 42a-2A-605 or by accepting the goods with due allowance from the rent payable for the balance of the lease period for the deficiency as provided in section 42a-2A-604.(b) If, after receipt of a notice under section 42a-2A-604 or 42a-2A-605, a party does not terminate or modify the lease contract within a reasonable time, not exceeding thirty days, the lease contract is terminated with respect to any performance affected.(c) This section may be varied by agreement only to the extent that the parties have assumed a different obligation under sections 42a-2A-604 and 42a-2A-605.Conn. Gen. Stat. § 42a-2A-606